Literature Reference: 衍：衍字出《诗经·小雅·鹿鸣》'我有嘉宾，鼓瑟吹笙，吹笙鼓簧，承筐是将。' 昀：昀字出《楚辞·九章·涉江》'日月忽其不淹兮，春与秋其代序。' Yan: From 'The Book of Songs·Xiao Ya·Lu Ming' 'I have honored guests, playing the lute and blowing the sheng, blowing the sheng and striking the huang, presenting baskets as gifts.' Yun: From 'Chu Ci·Jiu Zhang·She Jiang' 'The sun and moon swiftly pass without delay, spring and autumn take turns in succession.'
衍: Extend, initiate, evolve.
昀: Sunlight, sunshine. When used in personal names, it often symbolizes brightness and hope.
Meaning: Yan signifies extension and prosperity, while Yun signifies brightness and illumination, symbolizing a life filled with light and flourishing endeavors.